Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428310 | Iron-based oxide magnetic powder and method for producing same | Shin-ichi Ohkoshi, Asuka Namai, Hiroko Tokoro, Marie YOSHIKIYO, Kazuhiro Yamaga +3 more | 2025-09-30 |
| 11401170 | Iron based oxide magnetic powder and method for producing same | Shin-ichi Ohkoshi, Asuka Namai, Tetsuya KAWAHITO | 2022-08-02 |
| 11264155 | Epsilon-type iron oxide magnetic particles and method for producing the same, magnetic powder, magnetic coating material and magnetic recording medium containing magnetic particles | Kazuhiro Yamaga, Tetsuya KAWAHITO, Toshihiko Ueyama | 2022-03-01 |
| 11097956 | Surface-modified iron-based oxide magnetic particle powder | Tetsuya KAWAHITO | 2021-08-24 |
| 10919778 | Method for producing iron-based oxide magnetic particle powder | Tetsuya KAWAHITO | 2021-02-16 |
| 10622127 | Iron-based oxide magnetic particle powder, method for producing same, coating material, and magnetic recording medium | Tetsuya KAWAHITO | 2020-04-14 |
| 10504548 | Iron-based oxide magnetic particle powder and method for producing iron-based oxide magnetic particle powder | Tetsuya KAWAHITO | 2019-12-10 |
| 9683168 | Manufacturing method of nitride phosphor or oxynitride phosphor | Masahiro Gotoh | 2017-06-20 |
| RE45640 | Phosphor for electron beam excitation and color display device using the same | Masahiro Gotoh, Akira Nagatomi, Shuji Yamashita | 2015-08-04 |
| RE45502 | Phosphor and manufacturing method therefore, and light source using the phosphor | Akira Nagatomi | 2015-05-05 |
| RE44996 | Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED | Akira Nagatomi, Masahiro Gotoh, Shuji Yamashita | 2014-07-08 |
| 8475682 | Phosphor and manufacturing method therefore, and light emission device using the phosphor | Akira Nagatomi, Tomoya Yamada | 2013-07-02 |
| 8441180 | Light source having phosphor including divalent, trivalent and tetravalent elements | Akira Nagatomi, Masahiro Gotoh, Shuji Yamashita | 2013-05-14 |
| RE44162 | Phosphor and phosphor film for electron beam excitation and color display apparatus using the same | Masahiro Gotoh, Akira Nagatomi, Shuji Yamashita | 2013-04-23 |
| 8372309 | Phosphor and manufacturing method therefore, and light emission device using the phosphor | Akira Nagatomi | 2013-02-12 |
| 8303847 | Phosphor, manufacturing method of phosphor sheet and phosphor, and light emitting device using the phosphor | Masahiro Gotoh | 2012-11-06 |
| 8066910 | Phosphor and manufacturing method for the same, and light source | Akira Nagatomi, Masahiro Gotoh, Shuji Yamashita | 2011-11-29 |
| 8062549 | Phosphor and manufacturing method therefore, and light emission device using the phosphor | Akira Nagatomi, Tomoya Yamada | 2011-11-22 |
| 8048338 | Phosphor, phosphor sheet, and manufacturing method therefore, and light emission device using the phosphor | Akira Nagatomi | 2011-11-01 |
| 7887718 | Phosphor and manufacturing method therefore, and light emission device using the phosphor | Akira Nagatomi | 2011-02-15 |
| 7884539 | Light source having phosphor including divalent, trivalent and tetravalent elements | Akira Nagatomi, Masahiro Gotoh, Shuji Yamashita | 2011-02-08 |
| 7803286 | Phosphor and manufacturing method for the same, and light source | Akira Nagatomi, Masahiro Gotoh, Shuji Yamashita, Tetsuya Ikuta | 2010-09-28 |
| 7527748 | Phosphor and phosphor film for electron beam excitation and color display apparatus using the same | Masahiro Gotoh, Akira Nagatomi, Shuji Yamashita | 2009-05-05 |
| 7524437 | Phosphor and manufacturing method of the same, and light emitting device using the phosphor | Akira Nagatomi | 2009-04-28 |
| 7514860 | Phosphor mixture and light emitting device | Akira Nagatomi, Masahiro Gotoh | 2009-04-07 |